/*
* bspinit.S
*
* BSP specific initialization for Sparc64 RTEMS -- sun4u BSP
*
*  COPYRIGHT (c) 2010 Gedare Bloom.
*
*  The license and distribution terms for this file may be
*  found in the file LICENSE in this distribution or at
*  http://www.rtems.com/license/LICENSE.
* 
*  This code defines start code specific to the sun4u BSP
*
*  $Id: bspinit.S,v 1.1 2010/06/17 16:20:39 joel Exp $
*
*/

#include <rtems/asm.h>
#include <rtems/score/cpu.h>

#include <traptable.h>

#define LSU_CR_IM_MASK  (0x0004)  /* bit 2 */
#define LSU_CR_DM_MASK  (0x0008)  /* bit 3 */

#define STACK_WINDOW_SAVE_AREA_SIZE (16*8)

.register %g2, #scratch
.register %g3, #scratch

.section .text

PUBLIC(_BSP_init)
.global _BSP_init
  SYM(_BSP_init):
  save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp

  /* copy firmware trap table so that RTEMS can install ISR handlers */
  setx  SYM(trap_table), %l0, %o0
  rdpr  %tba, %o1
  set TABLE_SIZE, %o2
  call memcpy
  nop

  mov %g0, %o0
  call _take_mmu
  nop

  ret
  restore

